Refrigeration & Air-Conditioning Practice Set-3

May 18, 2021

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1. The curved lines on a psychrometric chart indicates

2. Mass flow ratio of NH₃ in comparison to Freon-12 for same refrigeration load and same temperature limits is of the order of

3. The C.O.P. of a refrigerator working on a reversed Carnot cycle is (where T₁ = Lowest absolute temperature, and T₂ = Highest absolute temperature)

4. A bootstrap air cooling system has

5. For obtaining high COP, the pressure range of compressor should be

6. On the pressure-enthalpy diagram, condensation and desuperheating is represented by a horizontal line because the process

7. Rating of a domestic refrigerator is of the order of

8. The domestic refrigerator uses following type of compressor

9. Most thermostatic expansion valves are set for a superheat of

10. In a refrigeration system, heat absorbed in comparison to heat rejected is


 

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A Demrot is the founder of VideRime Online Learning, a leading engineering website. He did his BE Civil and M.Tech Structure from RGPV University, Bhopal and has been working as an Assistant Professor in a reputed college.

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